Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title An Improved Feed-Forward Controller for the Parallel Operation of a Single-Phase PWM Converter in High-Speed Trains
Authors Byoung-Gun Park ; Dong-Seok Hyun
DOI 10.6113/TKPE/2010.15.3.226
Page pp.226-234
ISSN 1229-2214
Keywords Boost inductance; Feed-forward controller; Interference phenomenon
Abstract This paper proposes an improved feed-forward controller that calculates the gain value by estimating the changed boost inductance in practical operating condition of transformer. The boost inductance is estimated by the measurement of input current and voltage. The estimated boost inductance is optimized by the least square method. The proposed feed-forward controller can be achieved the robust control through the gain value calculating the estimated boost inductance despite of the changed condition of transformer and can minimize the interference phenomenon by reducing the harmonics of input current. The validity of proposed technique is verified through the simulation and experiment.